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Common problems for Connectivity Issues
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HP Color LaserJet Pro MFP M479fdn

If the EWS Event Log is giving you the following error:

"System Error
Network connection error. Check network and try again."

Try disabling all the addons in your browser, or use a different browser without addons. My issue was uBlock Origin in FFox. Opening in MS Edge (Which I never use) it worked fine. Adding the printer to "Trusted Sites" in uBlock fixed the issue.Blocked via addon in ChromeBlocked via addon in ChromeWhitelisted in addon in FFoxWhitelisted in addon in FFox

1 REPLY 1
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Hi @SpewlettSmackrd,

 

Welcome to HP Support Community.

 

Thanks for sharing your solution! It sounds like you encountered a browser addon compatibility issue that was interfering with accessing the Embedded Web Server (EWS) of your HP Color LaserJet Pro MFP M479fdn printer. Disabling addons or using a different browser without addons can indeed help troubleshoot such problems. Adding the printer to "Trusted Sites" in uBlock is a clever workaround to ensure smooth communication with the printer's web interface. It's great that you were able to resolve the issue!

 

Take care and have a good day.

 

Alden4

HP Support

Raj_05
HP Support Community Moderator
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